44 Which of the following statements is true?
(A) Birth order affects many aspects of a person’s life.
(B) The 1,000 children in the study had their IQ tested only once.
(C) The Dutch study is the first to examine the effects of birth order on intelligence.
(D) The dilution theory suggests that the more children, the better family resources.

The Dutch study shows a birth-order effect on intelligence in each of the tests. Overall, the IQ of the first-born child was higher than the second-born, which, in turn, was greater than that of children who had two or more older siblings. This is only the latest research to suggest that the order of birth can have a fundamental effect on diverse factors, ranging from the risk of cancer, asthma and eczema, to weight and even premature death. It can also affect personality, achievement, and career, with first-borns being more academically successful and more likely to win Nobel prizes.

這邊可以看出，越早出生的各方面影響很大((甚至更能得到諾貝爾獎